[Analysis of peri- and postoperative results of laser enucleation of the prostate using various techniques].

Introduction: Several techniques are used for laser enucleation of benign prostate hyperplasia, including two- and three-lobe enucleation, enucleation of all lobes in a single block (en-bloc), and enucleation of all nodes in a single block without longitudinal incisions (total en-bloc).

Aim: A prospective and retrospective analysis of the results of two-lobe, en-bloc, and total en-bloc using thulium fiber laser enucleation of the prostate (ThuFLEP) techniques was performed.

Method: s. The study included a retrospective and prospective comparative analysis of the peri- and postoperative results of ThuFLEP using several techniques. Patients with benign prostatic hyperplasia causing bladder outlet obstruction (IPSS>20, Qmax<15) were undergone to ThuFLEP from January 2015 to May 2022. All patients were examined prior to and 1, 3, and 6 months after the procedure. In the pre- and postoperative period, the age of the patients, prostate volume, level of prostate-specific antigen, functional parameters (IPSS, post-void residual, Qmax, and QoL), the stress urinary incontinence were evaluated. In addition, the following intraoperative parameters were assessed: duration of the procedure, enucleation rate, morcellation rate, and mass of enucleated tissue.

Results: We found 450 patients who underwent thulium fiber laser enucleation of prostate hyperplasia (ThuFLEP). Three laser enucleation techniques were used, including two-lobe (n=148; group A), en-bloc (n=150; group B), and total en-bloc without longitudinal incision (n=152; group C). The mean prostate volume was comparable between groups. The mean operation time for the total en-bloc technique (group C) was less compared to the other two techniques (58.9+/-30.1 vs. 68.8+/-30.6 for group A and 67.4+/-30.1 min for group B, respectively; p<0.005). The mean enucleation rate in group C was higher compared to groups A and B (2.3+/-0.78 vs. 1.9+/-0.74 and 1.9+/-0.69 g/min, respectively; p<0.005). The mean morcellation rate in all three groups was comparable (2.8+/-1.7, 3.0+/-1.1, and 2.9+/-2.1 g/min; p>0.05). After 6 months, there were no differences in functional results, according to the IPSS, PVR, Qmax, and QoL.

Conclusion: The two-lobe, en-bloc, and total en-bloc techniques were comparable in functional results and the complication rate. Total en-bloc enucleation showed the higher enucleation efficiency.